Model EX258B-415V 3-Phase Monitor
The Model EX258B-415V 3-Phase Monitor provides essential protection for industrial systems. This device detects critical anomalies such as phase loss, low voltage, and phase reversal, safeguarding connected equipment. With an adjustment range of 340-440VAC and 50Hz operation, it accommodates specific power requirements. Its AUTO Reset functionality minimizes downtime by automatically restoring operation after fault conditions clear. The monitor's robust design includes a five-year unconditional warranty and a mechanical relay life of 10 million operations, indicating long-term reliability. UL Recognized and CSA Certified approvals confirm its adherence to industry standards, offering a dependable solution for phase monitoring applications.
3Ph Pwr Mon W/Dly
Specifications
| Reset Type | AUTO Reset |
|---|---|
| Nominal AC voltage (phase to phase) | 415VAC |
| Case Color | Yellow |
| Adjustment range | 340-440VAC |
| Frequency | 50Hz |
| Power consumption | 3.3W |
| Protection Feature | Detects phase loss, low voltage, phase reversal |
| Warranty | Five year unconditional warranty |
| Transient protection | 2500VAC for 10ms |
| Repeat accuracy | ± 0.1% of set point (fixed conditions) |
| Response time | 50ms drop out |
| Dead band | Approx. 2% |
| Output contacts | SPDT 10 amps at 240VAC resistive |
| Expected relay life (Mechanical) | 10 million operations |
| Expected relay life (Electrical) | 100,000 operations at rated load |
| Operating temperature | -20° to +131° F |
| Humidity tolerance | 0-97% w/o condensation |
| Enclosure material | ABS plastic cover |
| Mounting | 8-pin socket (**sold separately) |
| Agency approvals | UL Recognized* and CSA Certified |
